QUADRUPEDS. 
55 
snoring on the icy shores; but when alarmed, they pre- 
cipitate themselves into the water with great bustle and 
trepidation, and swim with such rapidity, that it is diffi- 
cult to overtake them with a boat. One of their number 
always keeps watch while the others sleep. They feed on 
shellfish and sea-weeds, and yield a sort of oil equal in 
goodness to that of the whale. The white bear is their 
greatest enemy. In the combats between these animals, 
the Walrus is said to be generally victorious, on account 
of the desperate wounds it inflicts with its tusks. The 
females have only one young one at a time, which, when 
born, resembles a good-sized pig. 
